This alliance of 165 professional angel groups in the U.S. and Canada is a great starting point for entrepreneurs looking to tap this capital market. You will find a list of accredited investors organized by region.

This nonprofit, established by the Kauffman Foundation, has robust resources for entrepreneurs looking for advice on all aspects of angel investing -- including term sheets, valuations, due diligence, and NDAs.

This Web-based service standardizes the submission process for early-stage investments. The site boasts more than 14,000 investors, including 450 angel groups. Register with the site and you can submit a business plan to three groups simultaneously. For $250 a month, your proposal will be included in a news feed that investors can access on their Angelsoft dashboards. The site was the vehicle for more than 16,000 deals in the first half of 2008.